diff --git a/offitracker.py b/offitracker.py
index 2e7ca87..ecd240f 100644
--- a/offitracker.py
+++ b/offitracker.py
@@ -1,3 +1,4 @@
+import sys
 import csv
 import numpy as np
 import sounddevice as sd
@@ -12,7 +13,7 @@ import sounddevice as sd
 # Duration = tone duration in ms
 # (c) 2024 mueller_minki, Feel free to modify or share.
 
-def play_square_waves(frequencies, effects, duration, amplitude=1, noise_amplitude=0, sample_rate=44100):
+def play_square_waves(output_stream, frequencies, effects, duration, amplitude=1, noise_amplitude=0, sample_rate=44100):
     num_waves = len(frequencies)
     t = np.linspace(0, duration / 1000, int(sample_rate * duration / 1000), endpoint=False)
 
@@ -26,7 +27,9 @@ def play_square_waves(frequencies, effects, duration, amplitude=1, noise_amplitu
 
     combined_wave = np.sum(waves, axis=0)
 
-    sd.play(combined_wave, sample_rate, blocking=True)
+    combined_wave = combined_wave.astype(np.float32)
+
+    output_stream.write(combined_wave)
 
 def play_csv_file(file_path):
     with open(file_path, 'r') as csv_file:
@@ -35,16 +38,16 @@ def play_csv_file(file_path):
         num_columns = len(header)
         num_pairs = (num_columns - 1) // 2
 
-        for row in csv_reader:
-            frequencies = [float(row[f'Frequency{i}']) for i in range(1, num_pairs + 1)]
-            effects = [float(row[f'Effect{i}']) for i in range(1, num_pairs + 1)]
-            duration = float(row['Duration'])
+        with sd.OutputStream(channels=1) as output_stream:
+            for row in csv_reader:
+                frequencies = [float(row[f'Frequency{i}']) for i in range(1, num_pairs + 1)]
+                effects = [float(row[f'Effect{i}']) for i in range(1, num_pairs + 1)]
+                duration = float(row['Duration'])
 
-            # Check if 'Noise' column exists in the CSV file
-            noise_amplitude = float(row.get('Noise', 0))
-
-            play_square_waves(frequencies, effects, duration, noise_amplitude=noise_amplitude)
+                # Check if 'Noise' column exists in the CSV file
+                noise_amplitude = float(row.get('Noise', 0))
 
+                play_square_waves(output_stream, frequencies, effects, duration, noise_amplitude=noise_amplitude)
 
 if __name__ == "__main__":
     print(' ')
@@ -55,6 +58,10 @@ if __name__ == "__main__":
     print('/    |    \  |   |  |  |  | |    |   |  | \// __ \\\\  \___|    <\  ___/|  | \/')
     print('\_______  /__|   |__|  |__| |____|   |__|  (____  /\___  >__|_ \\\\___  >__|   ')
     print('        \/                                      \/     \/     \/    \/       ')
-    csv_file_path = input("Choose a CSV file: ")
+    print('                                          Version 1.1')
+    if len(sys.argv) > 1:
+        csv_file_path = sys.argv[1]
+    else:
+        csv_file_path = input("Choose a CSV file: ")
     play_csv_file(csv_file_path)